Metrohm 793 IC Sample Preparation Module - Manual (Page 20)

2 Installation
793 IC Sample Prep Module/ 8.793.1003 Instructions for Use
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2.3.3 Settings in the «IC Net 2.1» program
During configuration of the 793 IC Sample Prep Module and 753 Sup-
pressor Module the IC Net assistant “New system wizard” requires the
definition of “Event lines” for the SP Module A and suppressor, respec-
tively. Although these lines are not installed you must enter any unused
“Event line” to enable the program to proceed. Actually, the SP Module
A is controlled by the 766 sample processor, while the suppressor is
controlled by the event line from 733 valve B (see Fig. 5).
A main program for the system “neutralization.smt“ is defined together
with two programs for extra systems for the 766 IC Sample Processor.
“start-neutralization.smt“ starts the 752 Pump. Furthermore, the SP
Module A is rinsed at all three positions. “end-neutralization.smt“ turns
off the 752 Pump..
The peristaltic pumps of the 753 IC Suppressor Module and 793 IC
Sample Prep Module are started when the IC system is activated
(measuring baseline). For this, the option ’Start pump with startup Start pump with startup Start pump with startup Start pump with startup
hardware hardware hardware hardware’ has to be selected for both devices.
neutralization.smt
1. Program for the 766 IC Sample Processor:
001 Ctrl INIT 732
002 Move sample
003 Lift work
004 Ctrl FILL B / STEP 1
005 Pump 120 s
006 Ctrl FILL A 1
007 Ctrl INJECT B1
008 Wait 60 s
009 Ctrl ZERO 1
010 Ctrl INJECT A1
011 Ctrl STEP MSM 753
 Initialize remote interface
 Move needle to sample position
 Place lift with needle to working position
 Switch injection valve B at 733 to "Fill"
 Fill first sample loop (B) with sample
 Switch injection valve A at 733 to "Fill"
 Switch injection valve B at 733 to "Inject"
 Pump sample to sample loop A via SP Module A (*)
 Trigger autozero at 732 IC Detector
 Switch injection valve A at 733 to "Inject"
 Switch SP Module A to next position
(*) The time for pumping the sample to the SP Module A should be as small as
possible to avoid contamination of the subsequent preconcentration column
by other anions from the water used for this line. For this reason, calibration
procedures should include blank measurements with this water.